



 
Hi, I think you mean
The volume $V$ of a cone in cubic centimeters is given by \[V = \frac13 \pi \; r^2 h\] where $r$ is its radius and $h$ is it height, both in centimeters. You know that the sum of $r$ and $h$ is 10 cm so this allows you to write the volume $V$ as a function of one variable. Use the calculus you know to maximize this function. Penny 



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